MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm pointing to numerous compromised WordPress sites, which in turn host other PDF files. This behavior is indicative of SEO manipulation or a distribution network for malicious content. The ClamAV detection and ML classifier strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9922
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://schmitz.cz/res/file/94976461095.pdf In PDF document text
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/df50b07251ed13adc5eadb06608495fa/wisurusadum.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/f7635a4d05be607bdf2f64dbc2f09375/53504268265.pdfIn PDF document text
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/f2811cb17335103184237a5a697c96f8/vuxomexizarozudukuzewufo.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/h5qfjhsasktrkpemb6pr65kl20/worezupu.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/9lc9rai14q7k8ckgrh2jb3csl8/93058120611.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/q7q82l9sv0abapclhpi3n15fv6/medofezefonogap.pdfIn PDF document text
- http://j1medical.com/uploaded/file/jemafuxise.pdfIn PDF document text
- https://senzedigicraft.com/wp-content/plugins/super-forms/uploads/php/files/badf4dd114a02efa4db6fbdbb8ae7595/55287854487.pdfIn PDF document text
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074329e4461b---87215694623.pdfIn PDF document text
- https://hoakhanh.vn/uploads/image/files/getorufevisiz.pdfIn PDF document text
- https://fatheragneliti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cf9e24c0bd---fulimomoxirefafisuwox.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/xofasa.pdfIn PDF document text
- https://lapalettedesarts.fr/gestion/file/fitepuvifuzawuwo.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160944b25137d5---savesakuzukega.pdfIn PDF document text
- https://absolut-fit-and-dance.de/wp-content/plugins/super-forms/uploads/php/files/g93lg9giglv3rr29mrvkm31rmf/dadutozajuzepege.pdfIn PDF document text
- https://travelsafeway.com/userfiles/file/nilunupedoxam.pdfIn PDF document text
- http://glotecgh.com/upload/editor/file/18772781391.pdfIn PDF document text
- http://christschoolblr.in/userfiles/file/39685879552.pdfIn PDF document text
- http://shsalumniauditorium.org/clients/f/fa/fa32e32112b7cad64a7d7e78b95ed61b/File/71150631211.pdfIn PDF document text
- http://wisdomtours.net/upload/file/81875559285.pdfIn PDF document text
- http://adams-gold.ru/archive/image/file/mukaliwomenuvonijuro.pdfIn PDF document text
- http://marcobernini.it/userfiles/files/kalonobaxobozineva.pdfIn PDF document text
- http://inlovehuahin.com/file_media/file_image/file/74476796505.pdfIn PDF document text
- http://pahsclassof2005.com/clients/d/d6/d61c4c031b0f3af13d3e88110ef3a3e1/File/rezomekizufozokopabi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=engineering+hydrology+by+k+subramanya+solution+manual+pdfPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000116bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x116BF | 11376 bytes |
SHA-256: 61836cf11ea60b46554bce6a31e7f50055e0b2f143b545662e9adddd1e1586bd |
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font_01_sfnt_off000130ee.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130EE | 19004 bytes |
SHA-256: a1b07ac06f5d68584f665adb2378f1b90ee810e6d5f242264518d1da27793835 |
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font_02_sfnt_off000161b2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x161B2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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